package mybatis.log.util;

import javax.swing.JOptionPane;
import java.util.Arrays;

/**
 * <b>Bare Bones Browser Launch for Java</b><br>
 * Utility class to open a web page from a Swing application
 * in the user's default browser.<br>
 * Supports: Mac OS X, GNU/Linux, Unix, Windows XP/Vista/7<br>
 * Example Usage:<code><br> &nbsp; &nbsp;
 * String url = "http://www.google.com/";<br> &nbsp; &nbsp;
 * BareBonesBrowserLaunch.openURL(url);<br></code>
 * Latest Version: <a href="http://www.centerkey.com/java/browser/">www.centerkey.com/java/browser</a><br>
 * Author: Dem Pilafian<br>
 * Public Domain Software -- Free to Use as You Like
 *
 * @version 3.1, June 6, 2010
 */
public class BareBonesBrowserLaunch {
    static final String[] browsers = {"google-chrome", "firefox", "opera", "epiphany", "konqueror", "conkeror", "midori", "kazehakase", "mozilla"};
    static final String errMsg = "Error attempting to launch web browser";

    /**
     * Opens the specified web page in the user's default browser
     *
     * @param url A web address (URL) of a web page (ex: "http://www.google.com/")
     */
    public static void openURL(String url) {
        try {  //attempt to use Desktop library from JDK 1.6+
            Class<?> d = Class.forName("java.awt.Desktop");
            d.getDeclaredMethod("browse", new Class[]{java.net.URI.class}).invoke(d.getDeclaredMethod("getDesktop").invoke(null), new Object[]{java.net.URI.create(url)});
            //above code mimicks:  java.awt.Desktop.getDesktop().browse()
        } catch (Exception ignore) {  //library not available or failed
            String osName = System.getProperty("os.name");
            try {
                if (osName.startsWith("Mac OS")) {
                    Class.forName("com.apple.eio.FileManager").getDeclaredMethod("openURL", new Class[]{String.class}).invoke(null, new Object[]{url});
                } else if (osName.startsWith("Windows"))
                    Runtime.getRuntime().exec("rundll32 url.dll,FileProtocolHandler " + url);
                else { //assume Unix or Linux
                    String browser = null;
                    for (String b : browsers)
                        if (browser == null && Runtime.getRuntime().exec(new String[]{"which", b}).getInputStream().read() != -1)
                            Runtime.getRuntime().exec(new String[]{browser = b, url});
                    if (browser == null) throw new Exception(Arrays.toString(browsers));
                }
            } catch (Exception e) {
                JOptionPane.showMessageDialog(null, errMsg + "\n" + e.toString());
            }
        }
    }

}